Metal Buckle on a car seat, it's one of those moments where you curse at yourself because you should have known better, your children expect you to make sure they don't get hurt, and they don't know better.
It happened once, but it didn't happen again.
This might be a cool idea though, I just wonder how much wear and tear the blankets might put up with. Ideas?
Keep car seats cool with reflective emergency blankets
A friend of ours has a great hack to keep their kids' car seats cooler in hot Las Vegas -- they cover up the seats with aninexpensive reflective emergency blanket(the silver ones). The seats stay noticeably cooler, even when it's 110 degrees in the shade!